CVE-2019-8258: siemens sinumerik_access_mymachine\/p2p Heap-based Buffer Overflow

Vulnerability summary

CVE-2019-8258 is a critical (CVSS 9.8) Heap-based Buffer Overflow vulnerability in siemens sinumerik_access_mymachine\/p2p. EPSS estimates a 4.43% chance of exploitation in the next 30 days, higher than 91.2% of scored vulnerabilities.

Timeline

1. 05-03-2019
   PublishedVulnerability first disclosed.
2. 16-09-2024
   Last modifiedVulnerability information updated.

Description

UltraVNC revision 1198 has a heap buffer overflow vulnerability in VNC client code which results code execution. This attack appears to be exploitable via network connectivity. This vulnerability has been fixed in revision 1199.

• CWE-122Heap-based Buffer OverflowA heap overflow condition is a buffer overflow, where the buffer that can be overwritten is allocated in the heap portion of memory, generally meaning that the buffer was allocated using a routine such as malloc().
• CWE-787Out-of-bounds WriteThe product writes data past the end, or before the beginning, of the intended buffer.